VMAC - Vehicle Mounted Air Compressors
VMAC Technical Support: 888-241-2289
VMAC Knowledge Base: www.kb.vmacair.com
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Analog Throttle Control:
With the brake pedal firmly depressed, shift the truck into “REVERSE”.
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*The engine speed reduces to OEM base idle (Approximately 650 rpm).
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*The green LED on the control box remains illuminated.
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Repeat these steps in all gear selector positions to ensure the engine speed
does not increase unless the gear selector is in “PARK” or “NEUTRAL”.
Digital Throttle Control:
With the brake pedal firmly depressed, shift the truck into “REVERSE”.
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*The engine speed reduces to OEM base idle (Approximately 650 rpm).
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*The green LED on the control box remains illuminated.
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*The “STATUS” and “PRNDL” LED’s on the digital throttle control will turn off
and engine speed will reduce to base idle.
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*Shift the vehicle back into “PARK”.
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*Cycle the compressor off, then on again to reset the safety parameters.
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Repeat these steps in all gear selector positions to ensure the engine speed
does not increase unless the gear selector is in “PARK” or “NEUTRAL”.
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Allow the compressor to run until the system reaches full system pressure.
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Confirm all air valves are closed and the system has no air leaks.
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Turn off the compressor.
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Ensure any stored air is drained from the system.
Final Testing
Ensure the following has been completed:
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Operate the system with an air tool (or the VMAC Air Test Tool with the
appropriate orifice installed) for at least 1/2 hour (1 hour preferred).
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Road test the vehicle for approximately 14 miles (20 km).
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Observe the compressor operation to ensure that the belt alignment is good
and nothing is rubbing or contacting hot components.
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Check all components, connections and fasteners once the engine is turned off
and the system has cooled.
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Check the coolant level after the engine has been operated.
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Check the compressor oil level after the engine has been shut down and the oil
level has had time to stabilize.
